Distance between cities › USA › South Dakota › Keyapaha, SD › Distance from Keyapaha to Dewey Book Hotels

Distance from Keyapaha, SD to Dewey, IL

Distance

768 mi

Time

15 hours 6 mins

Gas Cost

$72 - $139

There are 640.51 miles from Keyapaha to Dewey in southeast direction and 768 miles (1,235.98 kilometers) by car, following the I-80 route.

Keyapaha and Dewey are 15 hours 6 mins far apart, if you drive non-stop .

This is the fastest route from Keyapaha, SD to Dewey, IL.

Keyapaha, SD and Dewey, IL are in the same time zone (CDT). Current time in both locations is 11:13 pm.

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Lowest Price Rental Cars in Keyapaha, SD

Planning on renting a car to go from Keyapaha, SD to Dewey, IL? Here there are some offers to rent a car in Keyapaha, SD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Keyapaha »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 30.85 gallons of gas to cover the route between Keyapaha, SD and Dewey, IL.

The estimated cost of gas to go from Keyapaha to Dewey is $100.64.

During the route, an average car will release 604.46 pounds of CO₂ to the atmosphere. The carbon footprint would be 0.79 pounds of CO₂ per mile.

Average USA gas price used for calculation is $3.26 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Keyapaha, SD and Dewey, IL

If you want to meet halfway between Keyapaha, SD and Dewey, IL or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 41.492939 and -94.280338, or 41º 29' 34.5804" N, 94º 16' 49.2168" W. This location is 384.11 miles away from Keyapaha, SD and Dewey, IL and it would take approximately 7 hours 33 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Stuart, IA, situated 382 miles from Keyapaha, SD and 388 miles from Dewey, IL. It would take 8 hours to go from Keyapaha to Stuart and 7 hours 9 mins to go from Dewey to Stuart.